19 instances from 4 years 2020 - 1 instance Jan Feb Mar Apr May Jun 28 Jul Aug Sep Oct Nov Dec 2018 - 3 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:24:00 04:24:03 04:24:23 Jul Aug Sep Oct Nov Dec 2017 - 5 instances Jan 6 Feb Mar Apr May Jun 21 2 Jun 21, 2017 2 instances 08:00:18 08:06:19 Jul Aug Sep Oct 2 Nov Dec 25 2016 - 10 instances Jan Feb Mar Apr May Jun Jul Aug Sep 19 4 Sep 19, 2016 4 instances 14:51:25 15:02:57 15:11:02 15:14:54 30 2 Sep 30, 2016 2 instances 21:18:46 21:21:24 Oct 3 3 Oct 3, 2016 3 instances 13:25:15 13:35:03 13:52:05 Nov Dec 29